Improvement in miners  lamps



J. C. MARSHALL. MINERSiLAM-P.

Patented Jam, 1876.

N-FHEIS. PHDTO-LITHOGRAFHER, WASNFNGTON. D. C,

UNITED STATES PATENT QFFIGE,

JAMES C. MARSHALL, OF GIRARDVILLE, PENNSYLVANIA.

IMPROVEMENT IN MINERS' LAMPS.

Specification forming part of Letters Patent No. 171,675, dated January4, 1876, application filed November 27, 1875.

To all whom it may concern:

Be it known that I, JAMES C. MARSHALL, of Girardville, in the county ofSchuylkill and State of Pennsylvania, have invented a new and ImprovedMiners Lamp, of which the following is a specification:

My invention consists of a spring, in combination with the book by whichthe lamp is hooked onto the hatto pinch the hat between it and the hook,to hold the hat securely when the miner is at work.

' Figure -1'is a sectional elevation of my improved lamp, and Fig. 2 isa top view.

Similar letters of reference indicate corresponding parts.

A is the tube in the top B of the' lamp, haviug the vent-holes O in theupper end of it, and extending at the lower end into the lamp somedistance below the top, but it may terminate thereat, if preferred. D isthe spring- G. B. KIEHL, E. G. WAGNER.

